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Atomic Clock Beats the Quantum Limit

Don Monroe

Researchers beat the quantum-mechanical fluctuations in an atomic clock by linking many atoms into an entangled quantum state and pushing the fluctuations into a realm that doesn’t influence the time measurement.

FocusJun 1, 20100 citations

Pushing the Limits of Quantum Sensing with Variational Quantum Circuits

Patrick J. Coles

Variational quantum algorithms could help researchers improve the performance of optical atomic clocks and of other quantum-metrology schemes.By

PhysicsDec 6, 20213 citations

Optical Lattice Clocks

Christopher W. Oates, Andrew D. Ludlow

A new breed of atomic clock—the “ticking” of which comes from transitions in millions of cooled atoms, trapped in optical standing waves created by tightly focused lasers—is pushing scientific timekeeping to previously unknown frontiers of precision.

Optics and Photonics NewsJan 1, 20151 citation

Quantum Clocks Based on Entanglement

Jincheng Zhang

This paper explores the potential of quantum entanglement for constructing ultra-precise timekeeping devices, surpassing the limitations of classical clocks. The core concept involves leveraging the inherent correlations within entangled quantum states to achieve unprecedented temporal resolution. We detail a proposed architecture for a quantum entanglement clock, focusing on utilizing the phase-sensitive nature of entangled particles to perform time measurements. The theoretical framework demonstrates how entanglement can fundamentally alter time measurement, offering a pathway towards dramatically improved accuracy. This work highlights the significance of quantum mechanics in redefining the boundaries of precision measurement and opens new avenues for technological advancements in areas such as fundamental physics research, metrology, and navigation systems. This research presents a novel approach to timekeeping, moving beyond the constraints of classical mechanics and into the realm of quantum phenomena.This paper explores the potential of quantum entanglement for constructing ultra-precise timekeeping devices, surpassing the limitations of classical clocks. The core concept involves leveraging the inherent correlations within entangled quantum states to achieve unprecedented temporal resolution. We detail a proposed architecture for a quantum entanglement clock, focusing on utilizing the phase-sensitive nature of entangled particles to perform time measurements. The theoretical framework demonstrates how entanglement can fundamentally alter time measurement, offering a pathway towards dramatically improved accuracy. This work highlights the significance of quantum mechanics in redefining the boundaries of precision measurement and opens new avenues for technological advancements in areas such as fundamental physics research, metrology, and navigation systems. This research presents a novel approach to timekeeping, moving beyond the constraints of classical mechanics and into the realm of quantum phenomena.

Aug 31, 20260 citations

Viewpoint: Keeping atoms synchronized for better timekeeping

Kurt Gibble

In a new regime for atomic clocks, strong interactions between atoms dramatically increase the clock’s coherence time.

Jul 6, 20100 citations

Squeezing More out of Atomic Clocks

Katherine Wright

Quantum effects can nearly double the precision of a state-of-the-art optical atomic clock, a finding that could allow the devices to search for possible fluctuations in fundamental constants of the Universe.

PhysicsJan 16, 20240 citations

Focus: Atomic Clock Beats the Quantum Limit

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Focus: Atomic Clock Beats the Quantum Limit

Abstract

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